Water-lift.



Patented May 22, I900. H. D. COLMAN.

- WATER LIFT.

( Applica.tion filed Nov. 2, 1898.)

4 Sheets-Sheet I.

(No Model.)

'No. 650,167. Patented May 22, I900.

H; n, CDLMAN. WATER LIFT.

(Application filed. Nov. 2, 1898.) no model.) 4 Sheets-Sheet 2.

M05566, IQQQZZZ No. 650,l67. Patented May 22, I900. H. D. COLMAN.

WATER LIFT.

(Appliation filed. Nov. 2, 1898.) (No Model.) 4 Sheets-Shut 3.

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No. 650,!67. Patefited Ma 22, I900.

H. n. COLMAN.

WATER L|FT.

(Application filed Nov! 2, 1898.) (No Model.) 4 Sheets-sheet 4.

ITED STATES PATENT OFFIcn.

HOWARD D. COLMAN, on ROCKFORD, ILLINOIS.

WATER-LIFT.

SlPZECIFICATION forming part of Letters Patent No. 650,167, dated May 22, 1900. Application'filed November 2,1898. Serial No. 695,257. (No model.)

To all whom it may concern:

Be it known that I, HOWARD D. CoLMAN, a citizen of the United States; residing at Rock. ford, in the county of Winnebago and State of Illinois, haveinvented certain new and useful Improvements in ater-Lifts, of which the following is a specification.

The object of this invention is the production of an apparatus for elevating one kind or quality of liquid with another under pressure--as, for instance, the elevation of rainwater from a cistern to an attic-tank by means of the water from the mains of a citys watersupply.

In the accompanying drawings, Figure 1 is a perspective view of the apparatus. Fig. 2 is a vertical central section of the same. Fig. 3 is a View similar to Fig. 2, but showing the moving partsin different operative positions. Fig. 4 is an end elevation of the apparatus. Fig. 5 is a vertical central section through the chambers shown in the preceding figure. I

Like letters of reference indicate corresponding parts throughout the several views.

For convenience I will describe the apparatus in its application to the elevation of cistern -Water, employing the water under pressure from the mains of a citys water-supply for the drive-water.

A is an air-chamber. A is a chamber in direct communication therewith.

B is a vacuum-chamber. B is a chamber having communication therewith.

C is the pressure-water-supply pipe, connected with the city water-mains.

D is the intake-pipe, having connection with the cistern.

E is the discharge-pipe, leading to the attic-tank.

E is a coil of pipe communicating with and forming a part of the discharge-pipe E, and F. is an air-chamber near the upper end of said coil. This pipe and airchamber are added to the discharge-pipe E in order that the apparatus may be operative in cases where there is no considerable rise in the dischargepipe, and the falling column and its eifect are thus obtained in positions where it is inconvenient to have a vertical discharge-pipe.

F is a pulse-valve; F, the tubular stem therefor, having the annular flange F at the lower end thereof, and F a bearing-stud withv in the tubular stem F, upon which stud the G is a floating piston free to move backward 6 5 and forward in the tube G with the changing flow of the water therein. This floating pis-" ton is an air-tight metallic cylinder arranged to have about the same specific gravity as water in order that it may be carried by the water with the least possible resistance. The tube G has an enlarged chamber G at one end thereof to receive the floating piston and permit the passage of water around'it to fill the pipe E upon startingthe apparatus',*and G is a chamber at the opposite end of the tube G.

H is a pivoted valve-arm crooked at its free end to be engaged by the floating pistonG. I-I is a valve pivotally mounted on said arm, and H is the seat for said valve.

- I is'a check-valve mounted on the valvestem I above the pivoted valve H. The length of the stem is such that when the valve H rests upon its seat H the valve I will be slightly open, the object of which is to prevent the formation of a partial vacuum in the "space between the two valves, and thus interfere with the ready opening of the valve H.

I is a cup surrounding the valve I for retaining a small quant ty of water about said valve and preventing the ingress of air to the chamber G3 when the partial vacuum occurs in that chamber.

J is an air-chamber for receiving the overflow or waste water, and J is the deliverypipe therefrom.

K is a check-valve, K the valve-stem, and K the valve-seat. The valve K has a vertical movement in its bearing K Assuming the parts to occupy the positions which they are represented as occupying in Fig. 2 and the intake-pipe D and the chamber B to be filled with water, the operation of the apparatus is as follows: Water. from;

the city water-mains is admitted through um inlet-pipe G, the pulse valve F being held from its seat F by the hand-lever F until the discharge-pipe E is filled. The pulse-valve F is then released to the actionof the drivewater, the rush of which will immediately close it sharply. The column of water in E,

however, by reason of its momentum will continue to rise, creating a partial vacuum in the tube G and the chambers G and G and to.

relieve thisvaouum water flows in from the" chamber B, 'opening and passing by the check-valve K. This partial vacuum in the chamber also causes the waste-water valve H-"toiopen. 1 As soon as the upward momen tum of the rising column of water in the pipe E is exhausted the check-valve K closes of its own weight, the column of water in the pipe Ecommences to descend, raising the valve I' and discharging into the chamber J thewaste water in the tube G. The floating piston-G is carriedby the movement of thewater in.

the direction of" the arrow 1.,Fig. 3,. striking againstthevalve-arm H of the valve H, raisin'gthe latter until. the current of escaping waste water catches and closes it. The valve 1 "H isihld closcdby the pressure in. the chamber'G until the partial vacuum occurs therein; The escape of the water being suddenly checked by the. closing of the valve H, the

momentum -iofi the descending column increases the pressure in the chamber G above thatifofthe city water, forcing open the pulsevalveiF against the pressure of the city water;:and' flows-downward past the pulse-valve into-the chamber A.. As soon as the m omen tum: of" the descending column of water is mm-W2, Fig.2.

spent? the pressure-water reverses its flow,

again driving upward the column of water in thei'pipe E at-auincreasing velocity until the I'USITIOf water'issufiicient .toclose the pulsevalve F, as before, the floating piston G being carried by the water. in the direction of the Bythisaction a partial vacuurmis again created within the tube G and the chambers G and G and the momentum "of the ascending Water column in the pipe E againrdraws' water from thechamber B.

' To: start the apparatus in action, the handlever'F isdepressed to open. the pulse-valve Eahdt'immediately returned to the horizon.-

" ta-liposition" itis shown to occupy in the drawings; The" pulse-valve-F being. opentand the pressurekwater" introduced, the operation of thexapparatuswill continue indefinitely. To 1 stop the operation of the apparatus, the ha.nd'

lflYQFF is raised, holding the pulse-valvelE against its seat.

In starting the apparatus when there istno water in. the intake-pipe D. the pulse-valveF is; actuated by the hand-lever F until the air in the pipe D and the chamber B" is exhausted: and discharged upward through the pipe E, the air in. the vacuum-chamber) B sufficiently rarified', and thetingressepipeD filled: with waterfrom the cistern.

The airand'vacuum cha,mbersfA,f'B, E an'dJIperform the usual functions of such chambers when applied to hydraulic machinery.

In cases where it is desirable to discharge water.inacontinuous stream under pressure at a point nearthe'apparatus the eifect of the rising discharge-pipe E is had in the coil '13 andrthe air-chamber B which give there- 'ver'sals 'of the flow of water necessary to cause the operation. of the apparatus.

- I claim as my invention- 1 Iuawater-lift, in combination, an intake-pipeg-adischarge-pipe, and means for re- "ducing the'pressure in or adjacent to the intake'pipe, which means comprises a pressurewater-supply pipe, a. pulse-valve,.a. checkvalve in the intake-pipe, an escape-valveand an. oscillating column of water; o

- 2'. In a. water-lift, in combination,Can 111- take-pipe; a vacuum-chamber having communication with the intake-pipe, a dischargepipe, and means for reducing the pressure in or adjacent to the intakerpipe, which means comprises a pressure-water-supply pipe, an

. air-chamberhaving communicati'ouwith-said pressure-water-supply pipe, a pulse-valve, a

supply-pipe, a pulse-valve, anescape-valve, a

I floating piston for the 'escape-va'lve, a' tube,- and means for opening the pulse waive against .the pressurewater. by the momentum of a column of water.

5. In a water-lifit,,i'n combination,.'an intake-pipe, adischarge-pipe,.apressure-waters-upply'pipe', a pulseii-valve, an escape-valve,

; a check-valveforthe waste water,.meahs for preventingthe closing of thecheck-valve ;when the escape-valve is closed, and means" for opening the pulse-valveagainstthe'pnessure-water by the momentum of a column of water. i v

6. In a water-lift, in combinatioman; in take-pipe, a-discharge'-pipe,fa pressure-water- 'supply pipe, a pulse-valve, an. escape-valve,

. v a check-valve forthe' wastewatena stein: for the said check-valve which stem is sosloc'atted' asto prevent the closing of the check-valve: when the escape-valve is closed and means for opening the pulsevalve against theipressure-water by the momentum ofa columnof water.

4 7". Ina water-lift, in combinatioman in-- take-pipe, adischarge-pipe, a pressure-water supply pipe,a pulse-valve, an escape-valve, a swinging supporting-arm therefor, a floating piston for moving the arm, a check-valve for the waste water, a stem for said checkvalve, which stem is of such length as to prevent the closing of the check-valve when the escape-valve is closed, and means for opening the pulse-valve against the pressure-water by the momentum of a column of water.

8. In a water-lift, in combination, an intake-pipe, a discharge-pipe, apressure-watersupply pipe, an escape-valve, a swinging supporting-arm therefor, a floating piston for moving the arm, a check-valve for the waste water, means for preventing the closing of the check-valve when the escape-valve is closed, a pulse-valve, a tubular stem therefor, a supporting-stud for said stem and means for opening the pulse-valve against the pressure-water by the momentum of a column of water.

9. In a water-lift, in combination, a pressure-water-sup ply pipe, a pulse-valve, a wastewater pipe, an intake-pipe, a delivery-pipe, and a column of water which by its momentum reduces the pressure in or adjacent to the intake-pipe.

10. In a water-lift, in combination, a pressure-water-supply pipe, an air-chamber, a pulse-valve, an intake-pipe, a check-valve for the intake-pipe, a delivery-pipe, a waste-water Valve, a floating piston for operating said last-mentioned valve and means for preventing the return of the waste water.

11. In a water-lift, in combination, a pressure-water-supply pipe, an air-chamber communicating therewith, a pulse-valve, an intake-pipe, a discharge-pipe, a vacuu m-chamher having a communication with the intakepipe, a check-valve for the intake-pipe, a waste-water valve, a floating piston for movtake-pipe, a vacuum-chamber having communication with the intake-pipe, a dischargepipe, a check-valve for the intake-pipe, a valve for the waste water, a floating piston for moving said last-mentioned valve, and a valve for preventing the return of the wast water.

13. In a watenlift, in combination, a pres sure-water-supply pipe, an air-chamber communicating therewith, a pulse-valve having a tubular stem, a supporting-stud for said stem,an intake-pipe, a vacuum-chamber having communication with the intake-pipe, a check-valve for the intake-pipe, a dischargepipe, a tube, a floating piston in the tube, a valve for the waste water, a swinging arm for said valve, which arm is arranged to be moved by the said floating piston to such a point as to carry the valve adjacent to its seat, and a check-valve to prevent the return of the waste water.

14. In a water-lift, in combination, a pressure-water-supply pipe, an air-chamber communicating therewith, a pulse-valve, a tubular stem therefor having an integral, annular flange at its lower end, asupportingstud for said stem, a screw for adjust-in g the position of the valve relative to its seat, a hand-lever for moving the valve, an intake-pipe, a vacuumchamber having communication with the intake pipe, a check valve for the intakepipe, a discharge-pipe, a tube, a floating piston in the tube, a check-valve for the waste Water, a swinging arm for supporting said valve, which arm is arranged to be moved by said floating piston so that said valve is carried to a point near its seat, a waste-water chamber, an escape-pipe leading therefrom, and a valve in the last-mentioned chamber for preventing the return of the waste water.

ing said valve, and means for preventing the return of the waste water.

12. In a water-lift, in combination, a pressure-water-supply pipe, an air-chambercommunicating therewith, a pulse-valve, an in- HOWARD D. COLMAN.

Witnesses:

JEANETTE M. EVANS, J. B. WHITEHEAD. 

